Maritime mobile-satellite service (MMSS, or maritime mobile-satellite radiocommunication service) is – according to Article 1.29 of the

International Telecommunication Union The International Telecommunication Union (ITU)In the other common languages of the ITU: * * is a list of specialized agencies of the United Nations, specialized agency of the United Nations responsible for many matters related to information ...

Radio Regulations Radio regulation refers to the regulation and licensing of radio in international law, by individual governments, and by municipalities. International regulation The International Telecommunication Union (ITU) is a specialized agency of the Unit ...

(RR) – "A

mobile-satellite service Mobile-satellite service (MSS, or mobile-satellite radiocommunication service) is – according to Article 1.25 of the International Telecommunication Union's Radio Regulations – "A radiocommunication service * between mobile earth stations and ...

in which mobile earth stations are located on board

ship A ship is a large watercraft, vessel that travels the world's oceans and other Waterway, navigable waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research and fishing. Ships are generally disti ...

s; survival craft stations and

emergency position-indicating radiobeacon station An emergency is an urgent, unexpected, and usually dangerous situation that poses an immediate risk to health, life, property, or Natural environment, environment and requires immediate action. Most emergencies require urgent intervention to ...

s may also participate in this service", in addition to serving as navigation systems.

Classification

This radiocommunication service is classified in accordance with ''ITU Radio Regulations'' (article 1) as follows:

Mobile service Mobile may refer to: Places * Mobile, Alabama, a U.S. port city * Mobile County, Alabama * Mobile, Arizona, a small town near Phoenix, U.S. * Mobile, Newfoundland and Labrador Arts, entertainment, and media Music Groups and labels * Mobile ...

* Maritime mobile service (article 1.28) **Maritime mobile-satellite service **

Port operations service 290px, Ship station dedicated to ''port operation service''. Port operations service (short: POS; also: port operations radiocommunication service') is – according to ''Article 1.30'' of the International Telecommunication Union's (ITU) Radio R ...

(article 1.30) **Ship movement service (article 1.31)

Frequency allocation

The allocation of radio frequencies is provided according to ''Article 5'' of the ITU Radio Regulations (edition 2012).''ITU Radio Regulations, CHAPTER II – Frequencies, ARTICLE 5 Frequency allocations, Section IV – Table of Frequency Allocations'' In order to improve harmonisation in spectrum utilisation, the majority of service-allocations stipulated in this document were incorporated in national Tables of Frequency Allocations and Utilisations which is with-in the responsibility of the appropriate national administration. The allocation might be primary, secondary, exclusive, and shared. *primary allocation: is indicated by writing in capital letters *secondary allocation: is indicated by small letters *exclusive or shared utilization: is within the responsibility of administrations ; Example of

frequency allocation Frequency allocation (or spectrum allocation) is the part of spectrum management dealing with the designation and regulation of the electromagnetic spectrum into frequency bands, normally done by governments in most countries. Because radio pr ...

: ;Selection of MMSS stations Inmarsat-3.gif, Space radio station, Inmarsat-3 satellite Néra fr.jpg,

Earth station A ground station, Earth station, or Earth terminal is a terrestrial radio station designed for extraplanetary telecommunication with spacecraft (constituting part of the ground segment of the spacecraft system), or reception of radio waves fro ...

, telephone terminal Voilier inm.jpg, Inmarsat aerial (stern of the yacht) US Navy 070124-N-4965F-004 Electronics Technician 2nd Class Joseph Melchor, assigned to the Arleigh Burke-class guided-missile destroyer USS Paul Hamilton (DDG 60), climbs the mast of the Paul Hamilton to perform pre-deployment.jpg, Inmarsat aerial of the US Navy Gruppenbild 05.jpg, Hand-held radios of the MMSS Satellite phone.jpg, Inmarsat satellite telephone

References / sources

Mobile services ITU Maritime communication {{radio-comm-stub

Classification

Frequency allocation

See also

References / sources